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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2403.00495 |
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| _version_ | 1866914738944868352 |
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| author | Han, Lu Liu, Chao Wang, Xiaoli Li, Feiyu Fan, Chuanyan Zhang, Junjie |
| author_facet | Han, Lu Liu, Chao Wang, Xiaoli Li, Feiyu Fan, Chuanyan Zhang, Junjie |
| contents | $α$-TeO2 is widely used in acousto-optic devices due to its excellent physical properties. Conventionally, $α$-TeO2 single crystals were grown using melt methods. Here, we report for the first time the growth of $α$-TeO2 single crystals using the aqueous solution method below 100 °C. Solubility curve of $α$-TeO2 was measured, and then single crystals with dimensions of 3.5x3.5x2.5 mm3 were successfully grown using seed crystals that were synthesized from spontaneous nucleation. The as-grown single crystals belong to the P41212 space group, evidenced by single crystal X-ray diffraction and Rietveld refinement on powder diffraction. Rocking curve measurements show that the as-grown crystals exhibit high crystallinity with a full-width at half maxima (FWHM) of 57.2''. Ultraviolet-Visible absorption spectroscopy indicates the absorption edge is 350 nm and the band gap is estimated to be 3.58 eV. The density and Vickers hardness of as-grown single crystals are measured to be 6.042 g/cm3 and 404 kg/mm2, repectively. Our findings provide an easy-to-access and energy-saving method for growing single crystals of inorganic compounds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_00495 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Low-temperature aqueous solution growth of the acousto-optic TeO2 single crystals Han, Lu Liu, Chao Wang, Xiaoli Li, Feiyu Fan, Chuanyan Zhang, Junjie Materials Science $α$-TeO2 is widely used in acousto-optic devices due to its excellent physical properties. Conventionally, $α$-TeO2 single crystals were grown using melt methods. Here, we report for the first time the growth of $α$-TeO2 single crystals using the aqueous solution method below 100 °C. Solubility curve of $α$-TeO2 was measured, and then single crystals with dimensions of 3.5x3.5x2.5 mm3 were successfully grown using seed crystals that were synthesized from spontaneous nucleation. The as-grown single crystals belong to the P41212 space group, evidenced by single crystal X-ray diffraction and Rietveld refinement on powder diffraction. Rocking curve measurements show that the as-grown crystals exhibit high crystallinity with a full-width at half maxima (FWHM) of 57.2''. Ultraviolet-Visible absorption spectroscopy indicates the absorption edge is 350 nm and the band gap is estimated to be 3.58 eV. The density and Vickers hardness of as-grown single crystals are measured to be 6.042 g/cm3 and 404 kg/mm2, repectively. Our findings provide an easy-to-access and energy-saving method for growing single crystals of inorganic compounds. |
| title | Low-temperature aqueous solution growth of the acousto-optic TeO2 single crystals |
| topic | Materials Science |
| url | https://arxiv.org/abs/2403.00495 |